Radim (and I) miss how to import existing key and certificate. So far
either self-coding such tool or using third party (GSKit) is required to
accomplish such basic (and trivial) operation.
On Sun, Oct 30, 2011 at 3:57 AM, Kumar Jayanti <v.b.kumar.jayanti_at_oracle.com
> wrote:
>
>
> On 28-Oct-2011, at 11:27 AM, Shreedhar Ganapathy wrote:
>
> Thanks for the details, Radim - This is going in the right direction in
> terms of specifics of your feedback. Much appreciate your taking time out
> to write up these.
>
> I have more comments below.
>
> On 10/27/11 3:24 PM, Radim Kolar wrote:
>
>
> Have you filed issues in the GlassFish community JIRA (
> http://java.net/jira/browse/GLASSFISH) so issues you see with GlassFish
> can be fixed ?
>
> no.
>
> i will give you simple example:
>
> slush# ab -c 200 -n 1000 http://www.filez.com/index.jsp\?q=karman
> This is ApacheBench, Version 2.3 <$Revision: 655654 $>
> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
> Licensed to The Apache Software Foundation, http://www.apache.org/
>
> Benchmarking www.filez.com (be patient)
> Completed 100 requests
> Completed 200 requests
> Completed 300 requests
> Completed 400 requests
> Completed 500 requests
> Completed 600 requests
> Completed 700 requests
> Completed 800 requests
> Completed 900 requests
> apr_poll: The timeout specified has expired (70007)
> Total of 910 requests completed
> slush#
> first about 900 requests are completed really quickly, then glassfish
> hangs for about 2 minutes. After it recovers, it never runs again on normal
> speed. it runs very slowly (about 100 timers slower).
>
>
> Do you know for sure here that there is something in GlassFish that is
> contributing to the issue? It could be application code written in a non
> scalable fashion as we have seen in some customer deployments.
>
> What would help here is a JIRA issue along with a set of jstack thread
> dumps before and after the hang starts to happen.
>
>
> This will make your feedback more actionable for us to work on.
>
> You've mentioned v2 and v3 - could you be specific about the versions you
> have used?
>
> glassfish V2 UR1, 3.1.1
>
>
> And the issues you have shared today are all on both of these releases
> consistently? If not, it would help to isolate which one of these releases
> has these issues. It would obviously be easier to put in fixes on latest
> releases and for older releases, the sustaining support for paid customers
> is the route to take.
>
>
> glassfish - server monitoring sucks,
>
>
> 1.
> often if you set monitoring to LOW, you get no usable output which is
> kinda confusing. for example in JDBC pool, web container, connector
> service, http server and such. So it must be set to HIGH for doing
> something.
>
> 2. there is no ability to graph counters. Look at geronimo 2.2, you can
> select some counters and put them into graph. set monitor interval every 5
> minutes and you will see graph for few days back. Its acceptable
> monitoring. You can download websphere 7 for developers and explore its
> monitoring, its really very nice stuff there.
>
> 3. no ability to reset monitoring counters (such as high watermarks).
>
> 4. better visual presentation of collected values in console. click to
> open section is difficult to navigate. Make toolbar on top or left side to
> choose section.
>
> 5. some counters are in some cases bad: (too high)
>
> MaxTime 1318697985767 millisecond Oct 15, 2011 6:59:45 PM Oct 15, 2011
> 7:18:17 PM -- Maximum response time ProcessingTime 4063784441 millisecond Oct
> 15, 2011 6:59:45 PM Oct 15, 2011 7:18:17 PM -- Average response time
> ServiceTime 5274792204777 millisecond Oct 15, 2011 6:59:45 PM Oct 15,
> 2011 7:18:17 PM -- Aggregate response time ErrorCount 0 count Oct 15,
> 2011 6:59:45 PM -- -- Number of error responses (that is, responses with
> a status code greater than or equal to 400) RequestCount 1298 count Oct
> 15, 2011 6:59:45 PM Oct 15, 2011 7:18:17 PM -- Number of requests
> processed
>
> What would you like to see ? Could you share some insights into what
> would constitute good monitoring capability in your view and file
> enhancement requests in JIRA?
>
> take a look at Geronimo or Websphere to check how their monitoring output
> looks like.
>
>
> Thanks for the feedback.
>
>
>
> but GUI for cluster management is great help, almost all WARs runs out of
> box. update tool is really nice stuff, performance is better then geronimo,
> stability is not very good, scheduled restarts are required for improving
> server health.
>
>
> It would greatly help to know specifics of the issues you are seeing - are
> restarts required because of heap exhaustion, high CPU utilization, perm
> gen issues, deadlocks ?
>
> perm gen issue after few app redeploys (all app servers are doing that),
> deadlock, sometimes it just runs slowly but not due to full heap or high
> cpu, it seems to wait for some timeout in connector. i am not aware of
> memory leaks in G 3.1.1
>
> Many of such perm-gen issues on deploys were resolved in 3.1.1 - if you
> still see these, you should file issues so we can fix it.
> Slowness of an app on GF can have so many causes including db level
> locking, or application thread contention, something in GF, et al so each
> issue of slowness needs to be analyzed - without any logs, diagnostic data
> such as jstacks and an issue to track its hard to pin point and fix all
> issues. So I request you to take one step further and help us by filing
> such issues as you see them.
>
> so-so documentation,
> What do you see lacking? I request you to please give us specifics.
>
> for example. how to import existing private key + certificate
>
> Administering JSSE Certificates<http://download.oracle.com/docs/cd/E18930_01/html/821-2435/ablqz.html#scrolltoc>
>
> Let us know if you still see something lacking in this.
>
> how to use JMS from apps running outside glassfish and how to
> authentificate users
>
> Good feedback. Thanks a lot.
> Shreedhar
>
>
>
--
Peter